BoilerFaultCodesTechnical description
Pump Rotor Blocked: Clear blockage
What causes this fault?
This fault occurs when debris, such as iron oxide sludge or grit, becomes trapped inside the pump and prevents the internal motor from spinning. It can also be caused by the pump's internal components seizing up after long periods of inactivity or due to electrical failure within the pump itself.
This fault is frequently seen at the start of autumn when homeowners turn their heating back on after the pump has sat stationary throughout the summer months.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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